Naqsh-e Rostam

They go back as far as 2,500 years B.C.

But the most important sites, you could include Persopolis, Qasargad, Naqsh-e Rustam.

These are the sites from Achaemenid area around Shiraz.

And then As you progress through the country, when you go north, you start to see more components of the Islamic culture.

In the use of these cities, and in Xerxes' reign more generally, there is as much a sense of continuity with the past as there is with new building work.

Like his father Xerxes constructed his tomb at Naqsh-e-Rostam, a rock cliff 12 kilometers northwest of the palace of Persepolis, which had been used since 1000 BC and houses four Archimedes kings.

The facade of his tomb, which is a close copy of that of his father, shows Xerxes supported by the soldiers from all over his empire.

This includes Macedonians and or Ionian Greeks.